Global Patent Index - EP 1035406 A1

EP 1035406 A1 2000-09-13 - FLOW RATE SENSOR, TEMPERATURE SENSOR AND FLOW RATE MEASURING INSTRUMENT

Title (en)

FLOW RATE SENSOR, TEMPERATURE SENSOR AND FLOW RATE MEASURING INSTRUMENT

Title (de)

DURCHFLUSS-AUFNEHMER, TEMPERATURAUFNEHMER UND DURCHFLUSS-MESSGERÄT

Title (fr)

DETECTEUR DE DEBIT, DETECTEUR DE TEMPERATURE, ET INSTRUMENT DE MESURE DE DEBIT

Publication

EP 1035406 A1 (EN)

Application

EP 98954745 A

Priority

  • JP 9805207 W
  • JP 32103497 A
  • JP 7985198 A
  • JP 7985298 A
  • JP 31854098 A
  • JP 32021098 A

Abstract (en)

A flow rate sensor for performing a flow rate detection of fluid with high accuracy without suffering adverse effect of the environmental temperature condition even when the fluid is viscous fluid having relatively high viscosity or the flow rate is relatively small is prvided. The flow rate sensor includes a flow rate detector (12) having a heating function and a temperature sensing function, and a pipe line (4) for fluid to be detected which is formed so that heat from the flow rate detector (12) is transferred to and absorbed by the fluid. The temperature sensing which is affected by a heat absorption effect of the fluid due to the heat is executed in the flow rate detector (12), and the flow rate of the fluid in the pipe line is detected on the basis of the temperature sensing result. Unit retaining portions (50, 60) formed on a casing (2) in which the pipe line (4) is formed, the unit retaining portions being disposed adjacent to the pipe line (4). A flow rate detecting unit (51) comprising the flow rate detector (12) is retained by the unit retaining portion (50), and a temperature detecting unit (61) comprising a fluid temperature detector (22) is retained by the unit retaining portion (60). <IMAGE>

IPC 1-7 (main, further and additional classification)

G01F 1/68; G01K 7/00

IPC 8 full level (invention and additional information)

G01F 1/68 (2006.01); G01F 1/69 (2006.01); G01F 1/692 (2006.01); G01F 1/699 (2006.01)

CPC (invention and additional information)

G01F 1/69 (2013.01); G01F 1/68 (2013.01); G01F 1/692 (2013.01); G01F 1/699 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1035406 A1 20000913; EP 1035406 A4 20050330; CA 2310635 A1 19990603; CA 2310635 C 20050118; CN 1124472 C 20031015; CN 1279761 A 20010110; CN 1474165 A 20040211; CN 1645061 A 20050727; CN 1657881 A 20050824; CN 1657882 A 20050824; KR 100441305 B1 20040723; US 6588268 B1 20030708; WO 9927327 A1 19990603

INPADOC legal status


2006-12-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060601

2005-03-30 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20050215

2005-03-23 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 01F 1/68 A

2005-03-23 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 01K 7/00 B

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000522

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE